Bump 2.3.2 dependencies and docs links for v3 RC1

Redoes #8612 to instead just re-up the existing 2.3.2 tag instead of cutting a new release.

- [x] Update jQuery dependencies for Bower to avoid some bugs
- [x] Bump to Recess 1.1.9
- [x] Update all links to point to @twbs org and new getbootstrap.com
- [x] Point download URLs to the release tag instead of a local ZIP

Also bumps some copyright across the project to `2013`.